In a shallow bowl, combine the flour, salt and pepper. In another shallow bowl, combine the crushed croutons and sesame seeds. Place lightly beaten eggs in a third shallow bowl. Coat chicken with flour mixture, then dip in eggs and coat with crouton mixture.

In a large nonstick skillet coated with cooking spray, cook chicken in butter and oil in batches over medium heat for 4-6 minutes on each side or until no longer pink.